Just some mistakes I noticed while reading through Inside Playdate recently. Mistakes include formatting, grammar, and copy pasting.
Seems like you separated push and pop and didn't update the description for pop:
Copied from uploading a game to the Playdate, the SDK is not a game:
Should probably be an image instead of x and y:
First it says x2 instead of y2, and then it says y1 instead of y2:
Should be "being able to save and restore":
The first function is a copy of the previous function (not pictured) with the description of the second function:
spite:setImage should be sprite:setImage:
I'm guessing the function should take f as an argument:
Both current and currently is a bit weird:
Formatting error on kTextAlignment.left:
Should be nodes in the description:
Should be node in the description 
:
Please close the parenthesis (relevant xkcd: xkcd: ():
Newline should be after previous description instead of between the functions:
I assume the function takes signal as an argument:
Same here?:
Function variations should be on separate lines:
I assume the first function takes an argument (also the inconsistency regarding colons in the description is a bit weird):
Functions should be on separate lines:
Frame timer sample code should not be a subsection of Common frame timer properties:
